The Metallicity dependence of the Cepheid Period-Luminosity relation: methodology and results

Details The Metallicity dependence of the Cepheid Period-Luminosity relation: methodology and results The Metallicity dependence of the Cepheid Period-Luminosity relation: methodology and results

2004-11-08

arxiv.org/abs/astro-ph/0411190v1

Astronomy and Astrophysics

Astrophysics

2 pages, 1 figure, to appear in the proceedings of the ESO-Arcetri workshop "Chemical Abundances and Mixing in Stars in the Mi

Scientific paper

We present the results of an observational campaign undertaken to assess the influence of the iron content on the Cepheid Period-Luminosity relation. Our data indicate that this dependence is not well represented by a simple linear relation. Rather, the behaviour is markedly non monotonic, with the correction peaking at about solar metallicity and declining for higher and lower values of [Fe/H].

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